Improvement in fire-grates



M.V PECKHAM.

Fire Grate. Y No. 106502. Patented Aug.'16,1870].;V

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Letters Patent A' 106,502, dated 'August 16, 1870.

IMPROVEMENT IN FIRE-@RATES The Schedule referred to in these LettersPatent and making part of the a'ame.

To all 107mm 'it muy concern Be it known that I, Mniunr'r PECKHAM, ofUtic'a, in the county of Oneida and State of N ew York, have invented anew and useful Improvement in Fire-Gratos; and I do hereby declare thefollowing to be a full and correct description of the same, sutcicnt toenable others skilled in the art to which my invention appertainstofully understand and construct the same, reference being had to theaccompanying drawing which makes part of this specification, and inwhich- Figure 1 is a plan or top view of my .improved grate.

Figure 2 is a sectional end view in line :c x, iig. 1.

Figures 3, 4, 'and 5 show different forms of the cleaners and detachedviews.

Like letters of reference indicate like parts in the several iigures.

The nature of my invention consists in cleaningdisks, having either a'smooth, serrated, on" toothed periphery hung between grate-bars on ashaft, with which they revolve, but on which .they slide freelylaterally. Also, in lugs formed on the grate-bars, so as to limit thelateral motion of the cleaningdisks.

A in the drawings represents the grate, the bars B of which aresufliciently apart from each other to allow of cleaning-disks, G, to beplaced between them, which disks, when notrevolved but stationary, actas gratebars.

lhese disks Cvslide laterally upon a square shaft, D, which revolves insuitable bearings at the under side of the ends of the grate.

The disks C may be smallerv or larger, and their perphery may-be eithersmooth, serrated, or toothed, and their shape may be either round oroblong, as may be required under diiilrent circumstances.'

In revolving the shaft, the disksiirevolve between ,the grate-bars, andforce down into the ash-pit all ashes and cinders, and, when largepieces'of einders have to pass through, the disks will move laterally,and'allow the large pieces to drop through.

To' prevent too much of a. lateral movement of the disks, l provide lugs.E, formed on each side of the ings, though allowing a free movement ofthe disks,

as shown in dotted lines in fig. 1, still limit suoli movement to asniicient degree.

The advantage of this arrangement of disks loosely on the shaft will beclearly understood without further explanation.-

Having thus described my invention,

iVhat I claim as new, and desire to secure by Letters Patent, 11s-- 1.The cleaning-disks C, having either a smooth, serrated, or toothedperiphery, hung between the bars of a re-grate, on a shaft, with whichthey revolve, but on which they laterally slide freely, substantially asherein described.

2. The combination of the above with thelugs E arranged and operatingsubstantially as and for the purpose herein described.

' MER-RICHT JPECKHAM.

Vitnesses:

JOHN H. KNOX, H. D. TALcoTT.

